// Lowering arithmetic
(Add(64|32|16|8) ...) => (ADD(Q|L|L|L) ...)
(AddPtr ...) => (ADDQ ...)
(Add(32|64)F ...) => (ADDS(S|D) ...)

(Sub(64|32|16|8) ...) => (SUB(Q|L|L|L) ...)
(SubPtr ...) => (SUBQ ...)
(Sub(32|64)F ...) => (SUBS(S|D) ...)

(Mul(64|32|16|8) ...) => (MUL(Q|L|L|L) ...)
(Mul(32|64)F ...) => (MULS(S|D) ...)

(Select0 (Mul64uover x y)) => (Select0 <typ.UInt64> (MULQU x y))

	if err == nil {
		t.Fatalf("X509KeyPair didn't return an error when arguments were switched")
	}
	if subStr := "been switched"; !strings.Contains(err.Error(), subStr) {
		t.Fatalf("Expected %q in the error when switching arguments to X509KeyPair, but the error was %q", subStr, err)
	}

	_, err = X509KeyPair([]byte(rsaCertPEM), []byte(rsaCertPEM))
	if err == nil {

  ...

}

func TestContains(t *testing.T) {
	for _, ct := range ContainsTests {
		if Contains(ct.str, ct.substr) != ct.expected {
			t.Errorf("Contains(%s, %s) = %v, want %v",
				ct.str, ct.substr, !ct.expected, ct.expected)
		}
	}
}

var ContainsAnyTests = []struct {
	str, substr string
	expected    bool
}{
	{"", "", false},
	{"", "a", false},
	{"", "abc", false},

	{[]byte(dots + dots + dots), " ", false},
}

func TestContainsAny(t *testing.T) {
	for _, ct := range ContainsAnyTests {
		if ContainsAny(ct.b, ct.substr) != ct.expected {
			t.Errorf("ContainsAny(%s, %s) = %v, want %v",
				ct.b, ct.substr, !ct.expected, ct.expected)
		}
	}
}

var ContainsRuneTests = []struct {
	b        []byte
	r        rune
	expected bool
}{

  if (!func_name.starts_with(kCompositeFuncPrefix)) return "";

  auto base_function_name =
      llvm::Twine(kQuantizedFuncPrefix)
          .concat(llvm::Twine(func_name.substr(kCompositeFuncPrefix.size())
                                  .rsplit("_fn")
                                  .first));

  if (merged_with_dequantize) {
    return base_function_name.concat("_float_output_fn").str();